INO80 chromatin remodeling complex in Drosophila melanogaster

The INO80 complex is an ATP-dependent chromatin remodeler of the INO80 subfamily that slides nucleosomes and positions the +1 nucleosome at promoters, and contributes to transcription regulation and DNA repair. In Drosophila it contains the Ino80 ATPase, the AAA+ ATPases Pontin and Reptin, actin and the actin-related proteins Arp5 and Arp8. FlyBase also places the Polycomb group DNA-binding protein Pho (the YY1 homolog) in the complex, consistent with a role of INO80 in recruiting Polycomb proteins.

MODULE:dmel_ino80_complexDRAFTCONCRETEProtein Complexmodules/dmel_ino80_complex.yaml
Ino80 complexGO:0031011
FB:FBgg0000291
FlyBase gene group INO80: Ino80 complex
FlyBase release FB2026_03 groups 7 D. melanogaster genes as ino80 complex (INO80); this module models that group.
GO:0031011
Ino80 complex
GO term grounding the module as Ino80 complex.

Grouping of actin, Arp5 and Arp8 together is a coarse simplification; in yeast Arp8 and actin bind the HSA region while Arp5 binds the ATPase. Pho is included because FlyBase lists it as an INO80 subunit; it is also modelled in the PhoRC part of dmel_polycomb_group_complexes. FlyBase groups realized by this module: INO80 (FBgg0000291). Participants were generated from the FlyBase gene-group membership and mapped to UniProtKB by projects/FLYBASE_GENE_GROUPS/generate_modules.py from module_specs/dmel_ino80_complex.yaml. None of the member genes has a gene review in this repository yet.

5Nodes
4Parts
0Variant Sets
0Variants
4Annotons
0Connections

Derived QC

Recommended-field compliance

100.0% recommended fields populated

All recommended fields populated.

Module deep research

✗ none found

No MODULE:dmel_ino80_complex deep-research report alongside the module YAML.

Leaf nodes lacking representative members

✓ every leaf node grounds to a representative protein.

Template conformance

✓ every declared conforms_to bundle matches its template motif.

Function consistency and core coverage

0 gene-function check(s) reflected in core functions · 0 conflict(s) · 1 evidence or coverage gap(s) (1 comparison(s))

Retained noncore functions are reported separately; they do not require promotion to core functions. Support from representative genes does not establish conservation across the whole family. Missing reviews or identifiers leave a claim unverified.

AnnotonParticipantFunctionAssessment
ino80_atpase_ino80 Ino80
UniProtKB:Q9VDY1
Gene
ATP-dependent chromatin remodeler activity
GO:0140658
Review Missing
No ai-review exists for this protein; its function and core-function coverage cannot yet be checked.

Gene-review completeness (0/7 grounded genes reviewed)

0 complete review(s) · 0 with deep research · 7 missing review · 0 reviewed but lacking deep research

Gene Review Complete Deep research
Act5C P10987 ✗ — —
pho Q8ST83 ✗ — —
rept Q9V3K3 ✗ — —
Ino80 Q9VDY1 ✗ — —
Arp5 Q9VEC3 ✗ — —
pont Q9VH07 ✗ — —
Arp8 Q9VX09 ✗ — —

Details

Context
Drosophila melanogasterNCBITaxon:7227
chromatinGO:0000785
INO80 complexProtein Complexdmel_ino80_complex

Ino80 ATPase complex with Pontin, Reptin, actin, Arp5, Arp8 and Pho.

Ino80 complexGO:0031011
Context
Drosophila melanogasterNCBITaxon:7227
chromatinGO:0000785
Part 1: catalytic remodeling subunit
Ino80 ATPaseProtein Complexino80_atpase

Annotons

Ino80 Ino80 ATPase
ino80_atpase_ino80
Participant: Gene Product: Ino80
Gene Product:

Function

ATP-dependent chromatin remodeler activityGO:0140658
Part 2: RuvB-like ATPase module
Pontin-Reptin AAA+ ATPasesProtein Complexino80_ruvbl

Annotons

Pontin-Reptin AAA+ ATPases
ino80_ruvbl_complex
Participant: Protein Complex: Pontin-Reptin AAA+ ATPases
Protein Complex:
Pontin-Reptin AAA+ ATPases
Active units:
pont
Participant: Gene Product: pont
Gene Product:
rept
Participant: Gene Product: rept
Gene Product:
Part 3: actin-related subunits
Actin and actin-related proteinsProtein Complexino80_actin_arp

Annotons

Actin and actin-related proteins
ino80_actin_arp_complex
Participant: Protein Complex: Actin and actin-related proteins
Protein Complex:
Actin and actin-related proteins
Active units:
Act5C
Participant: Gene Product: Act5C
Gene Product:
Arp5
Participant: Gene Product: Arp5
Gene Product:
Arp8
Participant: Gene Product: Arp8
Gene Product:
Part 4: sequence-specific DNA-binding subunit
PhoProtein Complexino80_pho

Annotons

pho Pho
ino80_pho_pho
Participant: Gene Product: pho
Gene Product: